User Data-driven Personalization System

Tasks

• •Built a user-segment engine based on course history and issued segmented coupons automatically
  • •Moved from batch cron issuance to condition-based automatic issuance, making marketing and operations actions more granular
• •Calculated each user's available coupons and reflected the maximum discount directly in pricing and checkout
  • •Lowered the purchase-entry barrier by showing the best discount without requiring separate coupon selection
• •Added certificate issuance to reinforce user progress and achievement
  • •Normalized webhook requests and used AWS Lambda to generate PDFs and email them to users